[U-Boot] [PATCH V2] Moved board specific values in config file

Liu Hui-R64343 r64343 at freescale.com
Fri Apr 23 12:06:11 CEST 2010


Stefano ,

> -----Original Message-----
> From: u-boot-bounces at lists.denx.de 
> [mailto:u-boot-bounces at lists.denx.de] On Behalf Of Stefano Babic
> Sent: 2010年3月28日 19:43
> To: u-boot at lists.denx.de
> Subject: [U-Boot] [PATCH V2] Moved board specific values in 
> config file
> 
> The lowlevel_init file contained some hard-coded values to 
> setup the RAM. These board related values are moved into the 
> board configuration file.
> 
> Signed-off-by: Stefano Babic <sbabic at denx.de>
> ---
>  cpu/arm_cortexa8/mx51/lowlevel_init.S |    5 ++++-
>  include/configs/mx51evk.h             |    3 +++
>  2 files changed, 7 insertions(+), 1 deletions(-)
> 
> diff --git a/cpu/arm_cortexa8/mx51/lowlevel_init.S 
> b/cpu/arm_cortexa8/mx51/lowlevel_init.S
> index 31af9e2..783c81f 100644
> --- a/cpu/arm_cortexa8/mx51/lowlevel_init.S
> +++ b/cpu/arm_cortexa8/mx51/lowlevel_init.S
> @@ -158,6 +158,7 @@
>  	/* Switch peripheral to PLL 3 */
>  	ldr r0, =CCM_BASE_ADDR
>  	ldr r1, =0x000010C0
> +	orr r1,r1,#CONFIG_SYS_DDR_CLKSEL
>  	str r1, [r0, #CLKCTL_CBCMR]
>  	ldr r1, =0x13239145
>  	str r1, [r0, #CLKCTL_CBCDR]
> @@ -171,6 +172,7 @@
>  	ldr r1, =0x19239145
>  	str r1, [r0, #CLKCTL_CBCDR]
>  	ldr r1, =0x000020C0
> +	orr r1,r1,#CONFIG_SYS_DDR_CLKSEL
>  	str r1, [r0, #CLKCTL_CBCMR]
>  
>  	mov r3, #DP_OP_216
> @@ -201,9 +203,10 @@
>  	/* setup the rest */
>  	/* Use lp_apm (24MHz) source for perclk */
>  	ldr r1, =0x000020C2
> +	orr r1,r1,#CONFIG_SYS_DDR_CLKSEL
>  	str r1, [r0, #CLKCTL_CBCMR]
>  	/* ddr clock from PLL 1, all perclk dividers are 1 
> since using 24MHz */
> -	ldr r1, =0x59E35100
> +	ldr r1, =CONFIG_SYS_CLKTL_CBCDR
>  	str r1, [r0, #CLKCTL_CBCDR]
>  
>  	/* Restore the default values in the Gate registers */ 
> diff --git a/include/configs/mx51evk.h 
> b/include/configs/mx51evk.h index e2daeca..5096ab7 100644
> --- a/include/configs/mx51evk.h
> +++ b/include/configs/mx51evk.h
> @@ -177,6 +177,9 @@
>  #define PHYS_SDRAM_1		CSD0_BASE_ADDR
>  #define PHYS_SDRAM_1_SIZE	(512 * 1024 * 1024)
>  
> +#define CONFIG_SYS_DDR_CLKSEL	0
> +#define CONFIG_SYS_CLKTL_CBCDR	0x59E35100

It's nice to have some comments about the value selected.

> +
>  
> /*------------------------------------------------------------
> -----------
>   * FLASH and environment organization
>   */
> --
> 1.6.3.3
> 
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> 
> 


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